The city of Palo Alto rejected Facebook CEO Mark Zuckerberg's plans to build four single-family homes around his main 5,000-square-foot home.

We’ve all heard the old adage “third time’s a charm,” but that doesn’t seem to be the case for Facebook CEO Mark Zuckerberg, who is facing his third real-estate-related ordeal this year.

On Sept. 15, the Palo Alto Architectural Review Board rejected Zuckerberg’s plans to remove two two-story and two one-story single-family homes surrounding his main residence and replace them with smaller family homes that would be used as guest houses.

Zuckerberg bought the four homes in 2013 in an attempt to maintain his family’s privacy. Currently, the Zuckerbergs have friends living in two of the homes, and the other two are used for entertaining purposes, said Zuckerberg’s architect Kathy Scott.

“The idea is just to expand our client’s capacity to enjoy the property: sharing time with friends and family, having more outdoor space to play,” Scott told The Mercury News.

“The current property is quite restricted and so this is just giving them more space for their residential functions.”

The new homes would be 20 percent smaller than the original homes and only fill half of the allotted lot size for each home. All in all, the four homes would fill 60,000 square feet of space — 40,000 square feet larger than what the city allows for single lot.

Although the Zuckerbergs and Scott argue the compound isn’t a single lot, the Palo Alto review board says the homes as-is wouldn’t be marketable as single-family homes due to their odd layouts that favor entertaining guests and hosting special events.

“If these things were put on the market individually, you’d have a hard time selling because some of them are very unusual,” said board member Robert Gooyer. “In the context, if you take all four of them, they make sense.”

“We understand from Mr. Zuckerberg’s representative that they are interested in making some adjustments to their drawings responding to the concerns raised by the architectural review board,” said Palo Alto city planning director Hillary Gitelman to CNN Money.

“Once those adjustments are made, they will be requesting that the board reconsider their recommendation. We hope to schedule this for a meeting in mid-November.”